The best solution is antitrust enforcement and removal of anti-competitive laws/rules lobbied for by incumbents. When companies have to compete with each other for labor and customers, wages go up and prices go down. Whey they consolidate they can charge monopoly rents.
Unions often even make this worse because they'll latch on to a monopolistic employer and then lobby with them to retain the monopoly at the expense of all the workers who are their customers rather than their employees.
> removal of anti-competitive laws/rules lobbied for by incumbents.
If even if there are such ideas in new government, they quickly disappear over wine and steak dinners with the lobbyists.
Unfortunately this is not seen as bypass of democratic process. Nobody voted for having less rights and any bargaining power stripped and yet here we are.
That's where security services should come in (in many countries protection of democracy is their main statutory duty) - but they are not doing their job tax payers pay them to do.
Arguing that we shouldn't do something because it's hard to enact is defeatism. When it's the thing you need to do you need to do it anyway. It's not like anything else that would actually work would be easier to pass -- the thing you want is the thing they don't want.
Unions often even make this worse because they'll latch on to a monopolistic employer and then lobby with them to retain the monopoly at the expense of all the workers who are their customers rather than their employees.